Lets Give Brigby a hand with Legendary

Mburn7

As everyone here knows, @Brigby set up a discussion thread to go over how the Legendary type could be adapted to MTGPQ, most likely due to the heavy legendary focus the next set (Dominaria) will have.  I think a poll should help him out quite a bit.
These options are the 3 he had posted originally, and a couple others that seem to be popular in the comments.

Some things to remember:

-"Legendary" and mytic-rare are two completely different things.  Legendaries are usually named, and do not have to by mythic rarity (Olivia and Hepatra are both legendaries, for example, while Decimator or Lightning Runner or not)

-"Legendary in paper simply means you cannot have more than one copy of that card on your side of the field at a time (it was changed a couple years ago for those out of the loop, now both players can have their own copy of a legendary card out a the same time).  Casting a second copy (or getting another copy some other way) causes one to be destroyed

-This change WILL effect legendaries already released. 

-Please keep your comments productive and cordial.  If you hate the idea, just pick the appropriate option.  Maybe give a quick defense.  No need to rant about how dumb this is, that won't help anyone.

Mburn7

D) Legendary cards cannot be reinforced. If you would cast another copy of a legendary already out, exile it and trigger an effect instead

I think this one is the most balanced and fair.  Also probably pretty easy to implement.
Otherwise I'd go with E.

wereotter

D) Legendary cards cannot be reinforced. If you would cast another copy of a legendary already out, exile it and trigger an effect instead

I would say as part of the triggered effect for casting a second copy of a legendary creature, the one on the field should be returned to full power/toughness in case of damage having been dealt to it or other effects weakening your creature.

andrewvanmarle

E) Just add the subtype and nothing else. Sometimes the simple solution is the best one.

The legendary type doesn't mesh well with mtgpq.

So do nothing essentially

If that isn't possible, then option D. No cost increase since you can't reinforce. 
It would be best to Exile the creature on the board a put the new one on the board with haste. 
Or a full heal like we're otter suggests

wereotter

D) Legendary cards cannot be reinforced. If you would cast another copy of a legendary already out, exile it and trigger an effect instead

I wouldn’t complain if they just added the supertype, but I always felt like reinforcing a creature was more or less this game’s version of answering how many copies of that creature you have in play, and since legendary creatures are unique, that answer should be one.

Allowing them to continue to reinforce would be simplest, and that’s fine. I just am hoping for something more reflective of their paper counterpart. Also it would potentially lead to more thought in decks if you can’t reinfirce your Olivia, Ulrich and Skysovereign, will you still run all three on your deck, or run non legendary creatures alongside them?

Regardless of how it’s solved, legendary is a major mechanic in Dominaria, so I’m glad it’s on their radar. 

Froggy

A) Only one Legendary card of each card type would be allowed to be added into your deck. (So 1 Creature, 1 Support, and 1 Spell). These cards would be buffed to compensate

I’m very against cost increase. Now that Greg seems to cascade 400 times a game, having restrictions would put an interesting restriction to the game. It would also totally wipe out power creep (I have 192 mythics, so I’m not getting any advantage here).

But newer players and players with smaller card collections will have a better chance at competing for once. I know it can be pretty overwhelming to see one mythic after another dropping from your opponent’s hand.

Having deck restrictions will make for interesting deck building sessions.

Gunmix25

D) Legendary cards cannot be reinforced. If you would cast another copy of a legendary already out, exile it and trigger an effect instead

I say it cannot be reinforced and an effect is triggered. But just refreshing isn't enough, I think. From a perspective of a player I would simply find something else that does reinforce, especially if I have to pay full mana for it. Be like Tishana is now. 

But I love the idea, as I think it is headed in the right direction. That so maybe when one is one copy is on the battlefield, the second, third or however many copies in hand cost only half the cost to refresh the original , trigger any ETB effects and X number of loyalty gems are generated (the latter is up to the Devs discretion) can be as simple as 2 or 3 or maybe crazy like 9 for those legendary cards that lack ETB effects. Still maintains legendary status 

Gunmix25

D) Legendary cards cannot be reinforced. If you would cast another copy of a legendary already out, exile it and trigger an effect instead

I voted... sheesh. Thought I did before the last post. My bad 

DBJones

E) Just add the subtype and nothing else. Sometimes the simple solution is the best one.

Part of the reason I voted this way is the significant backlog of bugs, many from new cards and mechanics. I feel adding new complexities to old cards before that's fixed is a bad plan for the stability of this game. Admittedly, option A is very unlikely to add bugs, but I just don't like that option. Playing around with card interactions is one of my favorite things in this game.

ElfNeedsFood

E) Just add the subtype and nothing else. Sometimes the simple solution is the best one.

The mechanic should remain very simple.

In essence, all creatures are singular on either side in this game already. Reinforce just naturally does that. 

TomB

Other (Please Specify)

I think they should be handled exactly as they are in paper, wherein only 1 copy of a legend can be in play at a time. If someone casts another copy both should be exiled, or at the very least the new one should exile the old one with no additional benefits or costs. And to make up for having the inability to be reinforced they should be excellent, even game changing cards that are good enough to be good enough to stand alone.

wereotter

D) Legendary cards cannot be reinforced. If you would cast another copy of a legendary already out, exile it and trigger an effect instead

TomB said:

I think they should be handled exactly as they are in paper, wherein only 1 copy of a legend can be in play at a time. If someone casts another copy both should be exiled, or at the very least the new one should exile the old one with no additional benefits or costs. And to make up for having the inability to be reinforced they should be excellent, even game changing cards that are good enough to be good enough to stand alone.

The rule you’re citing is outdated. Now a legendary can exist on both sides of the field, and if you play a second copy, one is sacrificed as a state based effect. 

TomB

Other (Please Specify)

Sorry wereotter. I haven't really been keeping up on various MTG rules changes, pretty much since 6th edition messed things up for me. I guess that means, on some level, I'm outdated...lol

That's even better though. Both us and the AI can play the same legendary, but we still can't have more than 1 of the same legend on our side at a time so they can still be made more powerful (at least p/t-cmc wise).

FindingHeart8

E) Just add the subtype and nothing else. Sometimes the simple solution is the best one.

TomB said:

Sorry wereotter. I haven't really been keeping up on various MTG rules changes, pretty much since 6th edition messed things up for me. I guess that means, on some level, I'm outdated...lol

That's even better though. Both us and the AI can play the same legendary, but we still can't have more than 1 of the same legend on our side at a time so they can still be made more powerful (at least p/t-cmc wise).

Kinesia

E) Just add the subtype and nothing else. Sometimes the simple solution is the best one.

Why wasn't Old Fogey rereleased in Rivals? Grin.

wereotter

D) Legendary cards cannot be reinforced. If you would cast another copy of a legendary already out, exile it and trigger an effect instead

Kinesia said:

Why wasn't Old Fogey rereleased in Rivals? Grin.

Because no one wanted to have to deal with banding rules

TomB

Other (Please Specify)

I never did get Banding to work in an effective deck...






But I tried...24 years ago...

Brakkis

D) Legendary cards cannot be reinforced. If you would cast another copy of a legendary already out, exile it and trigger an effect instead

They already have the "This support can not be reinforced" mechanic in play with Planeswalker abilities. Seems an easy thing to apply it to creatures.

joerginger

E) Just add the subtype and nothing else. Sometimes the simple solution is the best one.

Not exactly, since at least with Liliana 3's ultimate it creates a second support on the board. A second, identical creature is probly not what you had in mind.